TELEPHONES; MICROPROCESSOR-CONTROLLED TELEPHONE SETS; MICROPROCESSOR-CONTROLLED AUTOMATIC ALARMS CONNECTED TO TELEPHONE SETS; TELEPHONE PARTS, NAMELY LOUDSPEAKERS, CONNECTORS AND DECONNECTORS; VIDEO TEXT TRANSMITTERS/RECEIVERS AND TELECOMMUNICATIONS UNITS FOR USE WITH COMPUTERS; PAY TELEVISION EQUIPMENT, NAMELY, CENTRAL PROCESSING UNIT FOR HANDLING SUBSCRIBER DATA AND ENCODER FOR ENCRYPTION OF VIDEO AND DATA SIGNALS; SUBSCRIBER DECODER; PAY TELEVISION SETS; COMPUTERS, COMPUTER PERIPHERALS AND COMPUTER PROGRAMS FOR USE IN THE OPERATION, MAINTENANCE AND MANAGEMENT OF TELECOMMUNICATIONS NETWORKS; CRYPTOGRAPHIC COMPUTER TERMINALS; MICROPROCESSOR CONTROLLED TERMINALS; FOR ENCRYPTION OF ALPHANUMERICAL TEXT AND DATA; MICROPROCESSOR-CONTROLLED REPEATERS FOR DECODING GYROMAGNETIC TRANSMISSION SIGNAL; TELEMETRY COMMAND CONTROLS; COMPUTERIZED SIGNAL CONTROLS AND DATA ALARMS FOR WATER AND SEWAGE SYSTEMS; LAND-MOBILE RADIOS WITH COMPUTERIZED CONTROLS AND COMMANDS
Electrical and Scientific Apparatus